2012 BMW 640I CONVERTIBLE fuel pressure

When the vehicle is driven with a damaged tire,
its handling characteristics change, e.g., re‐
duced lane stability during braking, a longer
braking distance, and altered self-steering
properties. Adjust your driving style accord‐
ingly. Avoid abrupt steering maneuvers or driv‐
ing over obstacles, e.g., curbs, potholes, etc.
Because
the possible driving distance depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending on the driving speed, road conditions,
external temperature, cargo load, etc.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g., re‐
duced lane stability during braking, a longer
braking distance and altered self-steering prop‐
erties.◀
Final tire failure
Vibrations or loud noises while driving can
indicate the final failure of the tire. Reduce speed
and stop; otherwise, pieces of the tire could
come loose and cause an accident. Do not con‐
tinue driving, and contact your service center.◀
Message when the system was not
reset
A Check Control message is displayed.
The system detected a wheel change but was
not reset.
Warnings regarding the current tire inflation
pressure are not reliable.
Check the tire inflation pressure and reset the
system.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire can be detected.
Display in the following situations: ▷
A wheel without TPM electronics is fitted:
have
the service center check it if necessary.
▷ Malfunction: have the system checked by
your service center.
▷ TPM could not be fully reset. Reset the sys‐
tem again.
▷ Disturbance by systems or devices with the
same

radio frequency: after leaving the area
of the disturbance, the system automatically
becomes active again.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated

to the inflation pressure recommended by
the vehicle manufacturer on the vehicle placard
or tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la‐
bel, you should determine the proper tire infla‐
tion pressure for those tires.) As an added safety
feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that il‐
luminates a low tire pressure telltale when one
or more of your tires is significantly under-in‐
flated. Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate them
to the proper pressure. Driving on a significantly
under-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stopping
ability. Please note that the TPMS is not a sub‐
stitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low
tire pressure telltale. Your vehicle has also been
equipped with a TPMS malfunction indicator to
indicate when the system is not operating prop‐
erly. The TPMS malfunction indicator is com‐
bined with the low tire pressure telltale. When
the system detects a malfunction, the telltale will
flash for approximately one minute and then re‐
Seite 94
94 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Safety

The implementation of certain measures, driv‐
ing style and regular maintenance can have an
influence on fuel consumption and on the envi‐
ronmental impact.
Remove unnecessary cargo
Additional weight increases fuel consumption.
Remove attached parts following use
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Closing the windows
Open windows increase air resistance and
therefore lead to greater fuel consumption.
Check the tire inflation pressure
regularly
Check
and, if necessary, correct the tire inflation
pressure at least twice a month and before start‐
ing on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehicle
driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.
Avoid high engine speeds
Use 1st gear to get the vehicle in motion. Be‐
ginning with 2nd gear, accelerate rapidly. When
accelerating, shift up before reaching high en‐
gine speeds. When you reach the desired speed, shift into the
highest applicable gear and drive with the en‐
gine
speed as low as possible and at a constant
speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
The gear shift indicator* of your vehicle indi‐
cates the most fuel efficient gear.
Use coasting conditions
When approaching a red light, take your foot off
the accelerator and let the vehicle coast to a halt.
On a downhill gradient, take your foot off the ac‐
celerator and let the vehicle roll.
The flow of fuel is interrupted while coasting.
Switch off the engine during longer
stops
Switch off the engine during longer stops, e.g.,
at traffic lights, railroad crossings or in traffic
congestion.
Fuel savings are achieved after the vehicle is
switched off for only approx. 4 seconds.
Switch off any functions that are not
currently needed
Functions such as seat heating and the rear win‐
dow defroster require a lot of energy and con‐
sume additional fuel, especially in city and stop-
and-go traffic.
Therefore, switch off these functions if they are
not actually needed.
Have maintenance carried out
Have vehicles maintained regularly to achieve
optimal vehicle economy and operating life.
Have the maintenance carried out by your serv‐
ice center.
Please also note the BMW Maintenance Sys‐
tem.
Seite 142
142 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Things to remember when driving

Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then display a corresponding sign in the field of
vision.
You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents can occur.◀
Run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
Storage
Store wheels and tires in a cool, dry place with
as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels.
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Run-flat tires*
Label RSC label on the tire sidewall. The wheels are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The
support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a pressure loss.
Continued driving with a damaged tire., refer to
page 93
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains have
been tested by the manufacturer of your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷ 225/55 R 17.
▷ 245/45 R 18.
Follow the chain manufacturer's instructions.
Make
sure that the snow chains are always suf‐
ficiently tight. Retighten as needed according to
the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if necessary.
Seite 234
234 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Wheels and tires

Everything from A to Z
Index
A
ABS, Antilock Brake Sys‐
tem 101
Activated-charcoal filter 126
Active Blind Spot Detec‐ tion 98
Active seat, front 55
Active seat ventilation, front 55
Active Steering, integral 102
Adaptive brake lights, refer to Brake force display 100
Adaptive drive 102
Adaptive light control 85
Additional telephone 196
Additives, oil 239
Adjustments, seats/head re‐ straints 53
Airbags 88
Airbags, indicator/warning light 89
Air circulation, refer to Recir‐ culated-air mode 125
Air distribution, manual 123
Air drying, refer to Cooling function 125
Air pressure, tires 229
Air vents, refer to Ventila‐ tion 126
Air volume, automatic climate control 124
Alarm system 42
Alarm, unintentional 43
All around the center con‐ sole 17
All
around the interior rearview
mirror 18
All around the steering wheel 12
ALL program, automatic cli‐ mate control 125 All-season tires, refer to Win‐
ter tires 233
Alternating-code hand-held transmitter 129
Alternative oil types 239
AM/FM station 166
Announcement, navigation, refer to Spoken instruc‐
tions 155
Antifreeze, washer fluid 71
Antilock Brake System, ABS 101
Anti-slip control, refer to DSC 101
Appointments 212
Approved engine oils 239
Apps 222
Armrest, refer to Center arm‐ rest 132
Arrival time 78
Ashtray 129
Assist 218
Assistance, Roadside Assis‐ tance 249
Assistance when driving off 101
Audio playback 173
Audio playback, Blue‐ tooth 188
AUTO intensity 124
Automatic car wash 254
Automatic Curb Monitor 59
Automatic deactivation, front passenger airbags 89
Automatic headlamp con‐ trol 85
Automatic Hold 67
Automatic locking 39
Automatic recirculated-air control 125
Automatic Soft Closing, doors 40 Automatic transmission with
Steptronic 72
AUTO program, automatic cli‐ mate control 124
AUTO program, intensity 124
AUX-IN port 184
Average fuel consumption 77
Average speed 77
Axle loads, weights 261
B
Backrest curvature, refer to Lumbar support 54
Backrest, seats 53
Backrest, width 54
Backup camera 110
Backup lamps, bulb replace‐ ment 245
Balance 164
Band-Aids, refer to First aid kit 249
Bar for tow-starting/tow‐ ing 252
Bass 164
Battery replacement, vehicle battery 247
Battery replacement, vehicle remote control 32
Battery, vehicle 247
Before entering the car wash 254
Belts, safety belts 56
Beverage holder, cu‐ pholder 133
Bluetooth audio 188
BMW Apps 222
BMW Apps, video play‐ back 187
BMW Assist 218
BMW EfficientDynamics, refer to Saving fuel 141
BMW homepage 6
Seite 272
272 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Everything from A to Z

External temperature warn‐
ing 75
Eyes for securing cargo 141
F
Fader 164
Failure message, refer to Check Control 82
False alarm, refer to Uninten‐ tional alarm 43
Fan, refer to Air volume 124
Fault displays, refer to Check Control 82
Filler neck for engine oil 238
Fine wood, care 256
First aid kit 249
Fitting
for towing, refer to Tow
fitting 252
Flat Tire Monitor FTM 95
Flat tire, Tire Pressure Monitor TPM 91
Flat tire, warning lamp 93, 95
Flat tire, wheel change 246
Flooding 139
Floor carpet, care 256
Floor mats, care 256
FM/AM station 166
Fold-out position, windshield wipers 71
Foot brake 139
Front airbags 88
Front fog lamps 87
Front lamps 244
Front passenger airbags, au‐ tomatic deactivation 89
Front passenger airbags, indi‐ cator lamp 90
Front seats 53
FTM Flat Tire Monitor 95
Fuel cap 226
Fuel consumption, current 75
Fuel consumption, refer to Average fuel consump‐
tion 77
Fuel filler flap 226
Fuel gauge 74
Fuel quality 228 Fuel, tank capacity
262
Fuse 247
G
Garage door opener, refer to Integrated universal remote
control 128
Gas station recommenda‐ tion 155
Gear
change, automatic trans‐
mission 72
Gear shift indicator 79
General driving notes 138
Glove compartment 132
GPS navigation, refer to Navi‐ gation system 146
Gross vehicle weight, ap‐ proved 261
Gross weight, permissible for trailer towing 261
H
Hand brake, refer to Parking brake 67
Hand-held transmitter, alter‐ nating code 129
Hazard warning flashers 248
HD Radio 167
Headlamp control, auto‐ matic 85
Headlamp courtesy delay fea‐ ture 84
Headlamp courtesy delay fea‐ ture via remote control 37
Headlamp flasher 69
Headlamp glass 244
Headlamps 244
Headlamps, care 255
Headlamp washer system 69
Head restraints 53
Head restraints, front 57
Head-up Display 121
Head-up Display, care 257
Heavy cargo, stowing 141
Height, seats 53
Height, vehicle 260 High-beam Assistant
86
High beams 69
High beams/low beams, refer to High-beam Assistant 86
Hills 140
Hill start assistant, refer to Drive-off assistant 101
Hints 6
Holder for beverages 133
Homepage 6
Hood 236
Horn 12
Hotel function 39
Hot exhaust system 138
House number, entering for navigation 147
Hydroplaning 139
I
Ice warning, refer to External temperature warning 75
Icy roads, refer to External temperature warning 75
Identification marks, tires 231
Identification number, refer to Engine compartment 236
iDrive 19
Ignition key, refer to Remote control 32
Ignition off 65
Ignition on 65
Indication of a flat tire 93, 95
Indicator and warning mes‐ sages 14
Indicator lamps 14
Individual air distribution 123
Individual settings, refer to Personal Profile 33
Inflation pressure, tires 229
Inflation pressure warning FTM, tires 95
Info display, refer to Com‐ puter 76
Information on the navigation data 160
Initialization, Integral Active Steering 103
Seite 275
275Online Edition for Part no. 01 40 2 606 521 - 03 11 490

Reference Mobility Communication Entertainment Navigation Driving tips Controls At a glance

Initializing, Flat Tire Monitor
FTM 95
Initializing,
Tire Pressure Mon‐
itor TPM 92
Instrument cluster 14, 74
Instrument cluster, electronic displays 16
Instrument lighting 87
Integral Active Steering 102
Integrated key 32
Integrated universal remote control 128
Intensity, AUTO program 124
Interactive map 150
Interior equipment 128
Interior lamps 87
Interior lamps via remote con‐ trol 37
Interior motion sensor 43
Interior rearview mirror 60
Interior rearview mirror, auto‐ matic dimming feature 60
Intermediate destinations 152
Internet page 6
Intersection, entering for navi‐ gation 147
Interval display, service re‐ quirements 81
iPod/iPhone 185
J
Jacking points for the vehicle jack 246
Jack, refer to Vehicle jack 246
Joystick, automatic transmis‐ sion 72
K
Key/remote control 32
Keyless Go, refer to Comfort Access 41
Key Memory, refer to Personal Profile 33
Kickdown, automatic trans‐ mission 72
Knee airbag 88 L
Lamp replacement
243
Lamp replacement, front 244
Lamp replacement, rear 245
Lamps 84
Lamps and bulbs 243
Lane departure warning 97
Lane margin, warning 97
Language on Control Dis‐ play 80
Lashing eyes, securing cargo 141
LATCH child restraint fixing system 63
Leather, care 255
LEDs, light-emitting di‐ odes 244
Length, vehicle 261
Letters and numbers, enter‐ ing 24
License plate lamp, bulb re‐ placement 245
Light-alloy wheels, care 256
Light control 85
Light-emitting diodes, LEDs 244
Lighting 84
Lighting
via remote control 37
Light switch 84
Load 141
Loading 140
Lock, door 38
Locking/unlocking from in‐ side 39
Locking/unlocking via door lock 38
Locking/unlocking with re‐ mote control 36
Locking, automatic 39
Locking, central 35
Locking via trunk lid 41
Low beams 84
Low beams, automatic, refer to High-beam Assistant 86
Lower back support 54
Lug bolt lock 246
Lumbar support 54 M
Maintenance 241
Maintenance require‐ ments 241
Maintenance, service require‐ ments 81
Maintenance System, BMW 241
Malfunction displays, refer to Check Control 82
Manual air distribution 123
Manual air volume 124
Manual brake, refer to Parking brake 67
Manual mode, transmis‐ sion 73
Manual operation, backup camera 110
Manual operation, door lock 39
Manual
operation, exterior mir‐
rors 59
Manual operation, fuel filler flap 226
Manual operation, Park Dis‐ tance Control PDC 108
Manual operation, Side View 114
Manual operation, Top View 113
Manual transmission 71
Map, destination entry 150
Map in split screen 157
Map view 155
Marking on approved tires 233
Marking, run-flat tires 234
Massage seat, front 55
Master key, refer to Remote control 32
Maximum cooling 124
Maximum speed, winter tires 234
Measure, units of 80
Medical kit 249
Memory for seat, mirrors, steering wheel 58
Seite 276
276 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Everything from A to Z

Random playback
174
RDS 167
Reading out loud 214
Rear axle steering 102
Rear lamps 245
Rearview mirror 59
Rear window defroster 125
Recirculated-air mode 125
Recommended tire brands 233
Refueling 226
Remaining range 74
Reminders 213
Remote control/key 32
Remote control, malfunc‐ tion 38
Remote
control, universal 128
Replacement fuse 247
Replacing parts 243
Replacing wheels/tires 233
Reporting safety defects 8
Reserve warning, refer to Range 74
Resetting, Tire Pressure Mon‐ itor TPM 92
Residual heat, automatic cli‐ mate control 125
Retaining straps, securing cargo 141
Retreaded tires 233
Roadside Assistance 219
Roadside parking lamps 85
Rollover protection system 91
Roll stabilization, refer to Adaptive Drive 102
Roll stabilization, refer to Dy‐ namic Drive 102
Roof load capacity 261
Rope for tow-starting/tow‐ ing 252
Route 154
Route criteria, route 153
Route, displaying 154
Routes, avoiding 154
Route section, bypassing 155
RSC Runflat System Compo‐ nent, refer to Run-flat
tires 234 Rubber components,
care 256
Run-flat tires 234
S
Safe braking 139
Safety 7
Safety belt reminder 56
Safety belts 56
Safety belts, care 256
Safety systems, airbags 88
Satellite radio 168
Saving fuel 141
Scale, changing during navi‐ gation 156
Screen, refer to Control Dis‐ play 19
Screwdriver 243
Screw thread for tow fit‐ ting 252
Seat belts, refer to Safety belts 56
Seat heating, front 55
Seating position for chil‐ dren 62
Seat, mirror, and steering wheel memory 58
Seats 53
Seat ventilation, front 55
Selection list in instrument cluster 76
Selector lever, automatic transmission 72
Sensors, care 257
Service and warranty 7
Service requirements, CBS Condition Based Serv‐
ice 241
Service requirements, dis‐ play 81
Service, Roadside Assis‐ tance 249
Settings on Control Dis‐ play 79
Settings, storing for seat, mir‐ rors, steering wheel 58 Shifting, automatic transmis‐
sion 72
Shifting, manual transmis‐ sion 71
Shift paddles on steering wheel 73
Short commands 263
Shoulder support 54
Side airbags 88
Side View 114
Signaling, horn 12
Signals when unlocking 37
Sitting safely 53
Size 260
Ski bag 131
Smallest turning circle 261
Smoker's package 129
Snap-in adapter, mobile phone 205
Snow chains 234
Socket 130
Socket, OBD Onboard Diag‐ nostics 241
Software applications, iPhone 222
Software update 191
Spare fuse 247
Special destinations, naviga‐ tion 149
Specified engine oil types 239
Speed, average 77
Speed limit, setting 78
Speedometer 14
Split screen 23
Split
screen map settings 157
Spoken instructions, naviga‐ tion 155
SPORT+ program, Dynamic Driving Control 104
Sport automatic transmis‐ sion 73
SPORT program, Dynamic Driving Control 104
Sport program, transmis‐ sion 73
Stability control systems 101
Start/Stop button 65
Seite 278
278 Online Edition for Part no. 01 40 2 606 521 - 03 11 490
Everything from A to Z